Shelving unit



FIG. 1 is an isometric view of a shelving unit, incorporating my new design;

FIG. 2 is a right side elevation view thereof, although it is understood that the left side elevation is a mirror image;

FIG. 3 is a front elevation view thereof;

FIG. 4 is an opposite side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a shelving unit, as shown and described. 